HK24396A - Method of reproducibly making fiber optic coupler - Google Patents
Method of reproducibly making fiber optic couplerInfo
- Publication number
- HK24396A HK24396A HK24396A HK24396A HK24396A HK 24396 A HK24396 A HK 24396A HK 24396 A HK24396 A HK 24396A HK 24396 A HK24396 A HK 24396A HK 24396 A HK24396 A HK 24396A
- Authority
- HK
- Hong Kong
- Prior art keywords
- fibers
- tube
- aperture
- coating
- midregion
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/36—Mechanical coupling means
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/26—Optical coupling means
- G02B6/28—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals
- G02B6/2804—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals forming multipart couplers without wavelength selective elements, e.g. "T" couplers, star couplers
- G02B6/2821—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals forming multipart couplers without wavelength selective elements, e.g. "T" couplers, star couplers using lateral coupling between contiguous fibres to split or combine optical signals
- G02B6/2835—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals forming multipart couplers without wavelength selective elements, e.g. "T" couplers, star couplers using lateral coupling between contiguous fibres to split or combine optical signals formed or shaped by thermal treatment, e.g. couplers
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B37/00—Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
- C03B37/10—Non-chemical treatment
- C03B37/14—Re-forming fibres or filaments, i.e. changing their shape
- C03B37/15—Re-forming fibres or filaments, i.e. changing their shape with heat application, e.g. for making optical fibres
Abstract
A fiber optic coupler is formed by providing a glass tube having a longitudinal aperture (12) extending therethrough. Glass optical fibers (22, 24) each having a core, cladding and coating are disposed within the longitudinal aperture, the fibers extending beyond each end thereof. The coating is removed from that portion of the fibers in the midregion of the tube but remains on that portion of the fibers extending into the ends of the apertures. The coating can be removed prior to inserting the fibers into the tube, or it can be removed from that portion of the fibers in the midregion of the tube by oxidation, depolymerization or the like. The aperture is formed by a plurality of flattened walls, the dimensions and orientations of which are such that the cross-section of the aperture in the central region of the tube is symmetrical with respect to a plane passing through the longitudinal axis of the tube. At any cross-section of the aperture that is adjacent the coated regions of the fibers, each fiber coating contacts two walls of the aperture. The fibers are held taut to effect a tension therein, and the midregion of the tube is heated, collapsed about the fibers, and drawn to reduce the diameter thereof over a predetermined length.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/223,423 US4902324A (en) | 1988-07-25 | 1988-07-25 | Method of reproducibly making fiber optic coupler |
US07/261,693 US4902323A (en) | 1988-10-24 | 1988-10-24 | Method of making fiber optic coupler |
Publications (1)
Publication Number | Publication Date |
---|---|
HK24396A true HK24396A (en) | 1996-02-16 |
Family
ID=26917749
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
HK24396A HK24396A (en) | 1988-07-25 | 1996-02-08 | Method of reproducibly making fiber optic coupler |
Country Status (9)
Country | Link |
---|---|
EP (1) | EP0352957B1 (en) |
JP (1) | JP2883106B2 (en) |
KR (1) | KR0165532B1 (en) |
AT (1) | ATE130441T1 (en) |
AU (1) | AU618108B2 (en) |
CA (1) | CA1323195C (en) |
DE (1) | DE68924807T2 (en) |
ES (1) | ES2080072T3 (en) |
HK (1) | HK24396A (en) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4915467A (en) * | 1988-09-12 | 1990-04-10 | Corning Incorporated | Method of making fiber coupler having integral precision connection wells |
DE4111624C1 (en) * | 1991-04-10 | 1992-07-30 | Messerschmitt-Boelkow-Blohm Gmbh, 8012 Ottobrunn, De | |
US5268979A (en) * | 1992-07-15 | 1993-12-07 | Corning Incorporated | Achromatic overclad fiber optic coupler |
US5251276A (en) * | 1992-07-16 | 1993-10-05 | Corning Incorporated | Environmentally robust fiber optic coupler and method |
US5268014A (en) * | 1992-11-05 | 1993-12-07 | Corning Incorporated | Method of making robust fiber optic coupler |
US5295210A (en) * | 1992-12-31 | 1994-03-15 | Corning Incorporated | Optical waveguide fiber achromatic coupler |
JPH07253518A (en) * | 1994-03-15 | 1995-10-03 | Fujitsu Ltd | Production of star coupler and star coupler |
JP5684336B2 (en) | 2013-07-03 | 2015-03-11 | ファナック株式会社 | Purge cover for injection molding machine |
CN110823879B (en) * | 2019-11-16 | 2022-08-09 | 中北大学 | Roughened conical macrobend optical fiber ethanol gas sensor based on polypyrrole film modification |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1252126A (en) * | 1967-11-08 | 1971-11-03 | ||
US4291940A (en) * | 1977-06-13 | 1981-09-29 | Canadian Patents & Development Ltd. | Low loss access coupler for multimode optical fiber distribution systems |
CA1118621A (en) * | 1979-11-01 | 1982-02-23 | Lawrence C. Smyth | Method and jig for making optical fiber couplers |
US4377403A (en) * | 1980-09-29 | 1983-03-22 | The United States Of America As Represented By The Secretary Of The Navy | Method of fabricating a fused single-mode fiber bidirectional coupler |
AU569803B2 (en) * | 1984-09-06 | 1988-02-18 | Hitachi Limited | Optical fibre star coupler |
US4793674A (en) * | 1987-01-16 | 1988-12-27 | Allied-Signal Inc. | Fiber optic coupler using frit |
US4931076A (en) * | 1987-08-07 | 1990-06-05 | Corning Incorporated | Method of making fiber optic coupler |
-
1989
- 1989-06-15 CA CA000602840A patent/CA1323195C/en not_active Expired - Fee Related
- 1989-07-11 JP JP1177275A patent/JP2883106B2/en not_active Expired - Lifetime
- 1989-07-13 AU AU38113/89A patent/AU618108B2/en not_active Ceased
- 1989-07-19 DE DE68924807T patent/DE68924807T2/en not_active Expired - Fee Related
- 1989-07-19 ES ES89307314T patent/ES2080072T3/en not_active Expired - Lifetime
- 1989-07-19 EP EP89307314A patent/EP0352957B1/en not_active Expired - Lifetime
- 1989-07-19 AT AT89307314T patent/ATE130441T1/en not_active IP Right Cessation
- 1989-07-19 KR KR1019890010202A patent/KR0165532B1/en not_active IP Right Cessation
-
1996
- 1996-02-08 HK HK24396A patent/HK24396A/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
DE68924807T2 (en) | 1996-05-02 |
EP0352957B1 (en) | 1995-11-15 |
EP0352957A2 (en) | 1990-01-31 |
JP2883106B2 (en) | 1999-04-19 |
KR900002095A (en) | 1990-02-28 |
EP0352957A3 (en) | 1990-09-26 |
CA1323195C (en) | 1993-10-19 |
KR0165532B1 (en) | 1999-04-15 |
JPH0273312A (en) | 1990-03-13 |
AU3811389A (en) | 1990-01-25 |
DE68924807D1 (en) | 1995-12-21 |
AU618108B2 (en) | 1991-12-12 |
ES2080072T3 (en) | 1996-02-01 |
ATE130441T1 (en) | 1995-12-15 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PC | Patent ceased (i.e. patent has lapsed due to the failure to pay the renewal fee) |